Java tutorial
/* * JasperReports - Free Java Reporting Library. * Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved. * http://www.jaspersoft.com * * Unless you have purchased a commercial license agreement from Jaspersoft, * the following license terms apply: * * This program is part of JasperReports. * * JasperReports is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * JasperReports is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with JasperReports. If not, see <http://www.gnu.org/licenses/>. */ package net.sf.jasperreports.components.spiderchart; import java.awt.BasicStroke; import java.awt.Font; import java.awt.geom.Rectangle2D; import java.util.Locale; import net.sf.jasperreports.charts.type.EdgeEnum; import net.sf.jasperreports.charts.util.CategoryChartHyperlinkProvider; import net.sf.jasperreports.charts.util.ChartHyperlinkProvider; import net.sf.jasperreports.charts.util.ChartUtil; import net.sf.jasperreports.engine.JRComponentElement; import net.sf.jasperreports.engine.JRException; import net.sf.jasperreports.engine.JRPrintElement; import net.sf.jasperreports.engine.JRPrintHyperlinkParameters; import net.sf.jasperreports.engine.JRPrintImage; import net.sf.jasperreports.engine.JRRenderable; import net.sf.jasperreports.engine.component.BaseFillComponent; import net.sf.jasperreports.engine.component.FillPrepareResult; import net.sf.jasperreports.engine.fill.JRFillCloneFactory; import net.sf.jasperreports.engine.fill.JRFillCloneable; import net.sf.jasperreports.engine.fill.JRFillExpressionEvaluator; import net.sf.jasperreports.engine.fill.JRFillHyperlinkHelper; import net.sf.jasperreports.engine.fill.JRFillObjectFactory; import net.sf.jasperreports.engine.fill.JRTemplateImage; import net.sf.jasperreports.engine.fill.JRTemplatePrintImage; import net.sf.jasperreports.engine.type.EvaluationTimeEnum; import net.sf.jasperreports.engine.util.JRFontUtil; import org.jfree.chart.JFreeChart; import org.jfree.chart.labels.StandardCategoryItemLabelGenerator; import org.jfree.chart.labels.StandardCategoryToolTipGenerator; import org.jfree.chart.plot.SpiderWebPlot; import org.jfree.chart.title.LegendTitle; import org.jfree.chart.title.TextTitle; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.RectangleEdge; /** * * @author sanda zaharia (shertage@users.sourceforge.net) * @version $Id: FillSpiderChart.java 3892 2010-07-16 13:43:20Z shertage $ */ public class FillSpiderChart extends BaseFillComponent implements JRFillCloneable { private final SpiderChartComponent chartComponent; private final FillChartSettings chartSettings; private final FillSpiderDataset dataset; private final FillSpiderPlot plot; private Double maxValue; private String titleText; private String subtitleText; private String anchorName; private String hyperlinkReference; private String hyperlinkAnchor; private Integer hyperlinkPage; private String hyperlinkTooltip; private Integer bookmarkLevel; private JRPrintHyperlinkParameters hyperlinkParameters; private JRFillExpressionEvaluator expressionEvaluator; private ChartHyperlinkProvider chartHyperlinkProvider; private JRRenderable renderer; public FillSpiderChart(SpiderChartComponent chartComponent, JRFillObjectFactory factory) { this.chartComponent = chartComponent; this.chartSettings = new FillChartSettings(chartComponent.getChartSettings(), factory); this.dataset = new FillSpiderDataset(chartComponent.getDataset(), factory); factory.registerElementDataset(this.dataset); this.plot = new FillSpiderPlot(chartComponent.getPlot(), factory); this.expressionEvaluator = factory.getExpressionEvaluator(); } protected boolean isEvaluateNow() { return chartComponent.getEvaluationTime() == EvaluationTimeEnum.NOW; } public void evaluate(byte evaluation) throws JRException { if (isEvaluateNow()) { evaluateRenderer(evaluation); } } /** * */ protected void evaluateRenderer(byte evaluation) throws JRException { JFreeChart chart = evaluateChart(evaluation); JRComponentElement element = fillContext.getComponentElement(); Rectangle2D rectangle = new Rectangle2D.Double(0, 0, element.getWidth(), element.getHeight()); renderer = ChartUtil.getChartRendererFactory(getChartSettings().getRenderType()).getRenderer(chart, chartHyperlinkProvider, rectangle); } protected JFreeChart evaluateChart(byte evaluation) throws JRException { maxValue = (Double) fillContext.evaluate(getPlot().getMaxValueExpression(), evaluation); titleText = (String) fillContext.evaluate(getChartSettings().getTitleExpression(), evaluation); subtitleText = (String) fillContext.evaluate(getChartSettings().getSubtitleExpression(), evaluation); anchorName = (String) fillContext.evaluate(getChartSettings().getAnchorNameExpression(), evaluation); hyperlinkReference = (String) fillContext.evaluate(getChartSettings().getHyperlinkReferenceExpression(), evaluation); hyperlinkAnchor = (String) fillContext.evaluate(getChartSettings().getHyperlinkAnchorExpression(), evaluation); hyperlinkPage = (Integer) fillContext.evaluate(getChartSettings().getHyperlinkPageExpression(), evaluation); hyperlinkTooltip = (String) fillContext.evaluate(getChartSettings().getHyperlinkTooltipExpression(), evaluation); hyperlinkParameters = JRFillHyperlinkHelper.evaluateHyperlinkParameters(getChartSettings(), expressionEvaluator, evaluation); dataset.evaluateDatasetRun(evaluation); dataset.finishDataset(); chartHyperlinkProvider = new CategoryChartHyperlinkProvider(dataset.getItemHyperlinks()); bookmarkLevel = getChartSettings().getBookmarkLevel(); SpiderWebPlot spiderWebPlot = new SpiderWebPlot((DefaultCategoryDataset) dataset.getCustomDataset()); if (getPlot().getAxisLineColor() != null) { spiderWebPlot.setAxisLinePaint(getPlot().getAxisLineColor()); } if (getPlot().getAxisLineWidth() != null) { spiderWebPlot.setAxisLineStroke(new BasicStroke(getPlot().getAxisLineWidth())); } if (getPlot().getBackcolor() != null) { spiderWebPlot.setBackgroundPaint(getPlot().getBackcolor()); } if (getPlot().getBackgroundAlpha() != null) { spiderWebPlot.setBackgroundAlpha(getPlot().getBackgroundAlpha()); } if (getPlot().getForegroundAlpha() != null) { spiderWebPlot.setForegroundAlpha(getPlot().getForegroundAlpha()); } if (getPlot().getHeadPercent() != null) { spiderWebPlot.setHeadPercent(getPlot().getHeadPercent()); } if (getPlot().getInteriorGap() != null) { spiderWebPlot.setInteriorGap(getPlot().getInteriorGap()); } if (getPlot().getLabelColor() != null) { spiderWebPlot.setLabelPaint(getPlot().getLabelColor()); } if (getPlot().getLabelFont() != null) { spiderWebPlot.setLabelFont(JRFontUtil.getAwtFont(getPlot().getLabelFont(), Locale.getDefault())); } if (getPlot().getLabelGap() != null) { spiderWebPlot.setAxisLabelGap(getPlot().getLabelGap()); } if (maxValue != null) { spiderWebPlot.setMaxValue(maxValue); } if (getPlot().getRotation() != null) { spiderWebPlot.setDirection(getPlot().getRotation().getRotation()); } if (getPlot().getStartAngle() != null) { spiderWebPlot.setStartAngle(getPlot().getStartAngle()); } if (getPlot().getTableOrder() != null) { spiderWebPlot.setDataExtractOrder(getPlot().getTableOrder().getOrder()); } if (getPlot().getWebFilled() != null) { spiderWebPlot.setWebFilled(getPlot().getWebFilled()); } spiderWebPlot.setToolTipGenerator(new StandardCategoryToolTipGenerator()); spiderWebPlot.setLabelGenerator(new StandardCategoryItemLabelGenerator()); Font titleFont = getChartSettings().getTitleFont() != null ? JRFontUtil.getAwtFont(getChartSettings().getTitleFont(), Locale.getDefault()) : TextTitle.DEFAULT_FONT; JFreeChart jfreechart = new JFreeChart(titleText, titleFont, spiderWebPlot, true); if (chartSettings.getBackcolor() != null) { jfreechart.setBackgroundPaint(chartSettings.getBackcolor()); } RectangleEdge titleEdge = getEdge(getChartSettings().getTitlePosition(), RectangleEdge.TOP); if (titleText != null) { TextTitle title = jfreechart.getTitle(); title.setText(titleText); if (getChartSettings().getTitleColor() != null) { title.setPaint(getChartSettings().getTitleColor()); } title.setFont(titleFont); title.setPosition(titleEdge); jfreechart.setTitle(title); } if (subtitleText != null) { TextTitle subtitle = new TextTitle(subtitleText); subtitle.setText(subtitleText); if (getChartSettings().getSubtitleColor() != null) { subtitle.setPaint(getChartSettings().getSubtitleColor()); } if (getChartSettings().getSubtitleColor() != null) { Font subtitleFont = getChartSettings().getSubtitleFont() != null ? JRFontUtil.getAwtFont(getChartSettings().getSubtitleFont(), Locale.getDefault()) : TextTitle.DEFAULT_FONT; subtitle.setFont(subtitleFont); } subtitle.setPosition(titleEdge); jfreechart.addSubtitle(subtitle); } // Apply all of the legend formatting options LegendTitle legend = jfreechart.getLegend(); if (legend != null) { legend.setVisible((chartSettings.getShowLegend() == null || chartSettings.getShowLegend())); if (legend.isVisible()) { if (getChartSettings().getLegendColor() != null) { legend.setItemPaint(getChartSettings().getLegendColor()); } if (getChartSettings().getLegendBackgroundColor() != null) { legend.setBackgroundPaint(getChartSettings().getLegendBackgroundColor()); } if (getChartSettings().getLegendFont() != null) { legend.setItemFont( JRFontUtil.getAwtFont(getChartSettings().getLegendFont(), Locale.getDefault())); } legend.setPosition(getEdge(getChartSettings().getLegendPosition(), RectangleEdge.BOTTOM)); } } return jfreechart; } public JRPrintElement fill() { JRComponentElement element = fillContext.getComponentElement(); JRTemplateImage templateImage = new JRTemplateImage(fillContext.getElementOrigin(), fillContext.getDefaultStyleProvider()); templateImage.setStyle(fillContext.getElementStyle()); templateImage.setLinkType(getLinkType()); templateImage.setLinkTarget(getLinkTarget()); JRTemplatePrintImage image = new JRTemplatePrintImage(templateImage); image.setX(element.getX()); image.setY(fillContext.getElementPrintY()); image.setWidth(element.getWidth()); image.setHeight(element.getHeight()); if (isEvaluateNow()) { copy(image); } else { fillContext.registerDelayedEvaluation(image, chartComponent.getEvaluationTime(), chartComponent.getEvaluationGroup()); } return image; } public FillPrepareResult prepare(int availableHeight) { return FillPrepareResult.PRINT_NO_STRETCH; } public JRFillCloneable createClone(JRFillCloneFactory factory) { throw new UnsupportedOperationException(); } public void evaluateDelayedElement(JRPrintElement element, byte evaluation) throws JRException { evaluateRenderer(evaluation); copy((JRPrintImage) element); } protected void copy(JRPrintImage printImage) { printImage.setRenderer(getRenderer()); printImage.setAnchorName(getAnchorName()); printImage.setHyperlinkReference(getHyperlinkReference()); printImage.setHyperlinkAnchor(getHyperlinkAnchor()); printImage.setHyperlinkPage(getHyperlinkPage()); printImage.setHyperlinkTooltip(getHyperlinkTooltip()); printImage.setBookmarkLevel(getBookmarkLevel()); printImage.setHyperlinkParameters(hyperlinkParameters); // transferProperties(printImage); } /** * */ private static RectangleEdge getEdge(EdgeEnum position, RectangleEdge defaultPosition) { RectangleEdge edge = defaultPosition; if (position != null) { switch (position) { case TOP: { edge = RectangleEdge.TOP; break; } case BOTTOM: { edge = RectangleEdge.BOTTOM; break; } case LEFT: { edge = RectangleEdge.LEFT; break; } case RIGHT: { edge = RectangleEdge.RIGHT; break; } } } return edge; } protected ChartHyperlinkProvider getHyperlinkProvider() { return chartHyperlinkProvider; } /** * @return the chartSettings */ public FillChartSettings getChartSettings() { return chartSettings; } /** * @return the dataset */ public FillSpiderDataset getDataset() { return dataset; } /** * @return the plot */ public FillSpiderPlot getPlot() { return plot; } /** * @return the maxValue */ public Double getMaxValue() { return maxValue; } /** * @return the titleText */ public String getTitleText() { return titleText; } /** * @return the subtitleText */ public String getSubtitleText() { return subtitleText; } /** * @return the anchorName */ public String getAnchorName() { return anchorName; } /** * @return the hyperlinkReference */ public String getHyperlinkReference() { return hyperlinkReference; } /** * @return the hyperlinkAnchor */ public String getHyperlinkAnchor() { return hyperlinkAnchor; } /** * @return the hyperlinkPage */ public Integer getHyperlinkPage() { return hyperlinkPage; } /** * @return the hyperlinkTooltip */ public String getHyperlinkTooltip() { return hyperlinkTooltip; } /** * @return the hyperlinkTooltip */ public Integer getBookmarkLevel() { return bookmarkLevel; } /** * @return the expressionEvaluator */ public JRFillExpressionEvaluator getExpressionEvaluator() { return expressionEvaluator; } /** * @return the renderer */ public JRRenderable getRenderer() { return renderer; } public String getLinkType() { return getChartSettings().getLinkType(); } public String getLinkTarget() { return getChartSettings().getLinkTarget(); } /** * @return the hyperlinkParameters */ public JRPrintHyperlinkParameters getHyperlinkParameters() { return hyperlinkParameters; } }